CN220509896U - Mute micro-switch - Google Patents

Abstract

The utility model discloses a mute micro-switch, which comprises a cover body, a button, an elastic piece and a base; the cover body is provided with an inner cavity; the button is attached to and exposed out of the cover body and can move up and down relative to the cover body; the elastic piece is arranged in the inner cavity and is abutted to the button, the elastic piece is provided with a first side and a second side which are opposite, the first side is fixedly arranged, the second side is provided with a contact, the elastic piece is provided with a frame opening, the frame opening extends inwards along the arrangement direction of the first side and the second side to form a first elastic piece and a second elastic piece, and two corners of the end part of the first elastic piece are provided with bulges; the base is matched with the cover body, a first terminal and a second terminal are arranged on the base, a groove is formed at one end of the first terminal, which faces the cover body, corresponding to the bulge, a sinking groove is formed at the end, which corresponds to the second spring plate, of the first terminal, one end of the first terminal, which faces the cover body, is connected between the first spring plate and the second spring plate in a penetrating manner, the bulge is clamped in the groove, the end of the second spring plate is clamped in the sinking groove, and the second terminal is arranged corresponding to the second side.

Description

Mute micro-switch

Technical Field

The utility model relates to the technical field of switches, and particularly discloses a mute micro-switch.

Background

The micro switch is a contact mechanism which has a micro contact interval and a quick action assembly and performs switching action by a prescribed stroke and force; the micro switch is used for automatic control and safety protection in equipment needing frequent circuit switching, and is widely applied to the fields of electronic equipment, instruments, power systems, electrical equipment and the like.

Firstly, the conventional dome structure micro switch in the existing market is of a single dome unidirectional pulling tension structure, and the switching end is a bent dome, so that the switch can make dome conduction contact shake and generate larger friction collision during switching operation, larger impact sound can be generated, the contact can be worn to a larger extent, and unstable conduction (also called multi-conduction) is mainly easy to generate during switching operation; secondly, in the in-service use, realize the switch function through pressing the button generally, and along with the extension of live time, micro-gap switch's shell fragment can not avoid taking place to shift, perhaps when receiving external force vibrations, micro-gap switch shell fragment can take place to shift, and the contact also can follow the shift, leads to using function restriction, has the problem that stability in use is poor. In addition, in the actual use process, the rebound after the elastic sheet is switched collides with the cover plate to generate louder sound. In addition, in the actual use process, dust or foreign matter can drop in the button hole and get into inside the switch, and dirt glues on the contact and influences the switching-on function.

Disclosure of Invention

In order to solve at least one problem in the prior art, the utility model provides a micro switch with a double-spring bidirectional pulling tension structure, and the switching end is a straight spring, and the bidirectional component force ensures that a stable straight spring conduction contact point of the switch does not shake and generates larger friction collision during switching operation, so that the impact sound is reduced, the contact point abrasion is reduced to the greatest extent, and unstable conduction (also called multiple conduction) is not generated mainly during switching operation; secondly, the micro switch with double spring plates in bidirectional opposite extrusion work and concave-convex bidirectional limit spring plate structures at the same terminal position can ensure the stability of spring plate attachment, thereby avoiding the problem that the spring plates cannot be normally used due to displacement after long-time use; in addition, the micro switch provided with the elastic piece rebound buffer mechanism solves the problem of large rebound sound; furthermore, a micro-switch with a dust collecting device is provided, and the problem of conduction movement quality after long-term use is solved. The innovation in the multiple aspects is combined, and the service life of the switch is greatly prolonged.

The utility model adopts the technical proposal for solving the problems that:

a mute micro-switch comprising:

the cover body is provided with an inner cavity;

the button is connected with and exposed out of the cover body and can move up and down relative to the cover body;

the elastic piece is arranged in the inner cavity and is abutted against the button, the elastic piece is provided with a first side and a second side which are opposite, the first side is fixedly arranged, the second side is provided with a contact, the elastic piece is provided with a frame opening, the frame opening extends inwards along the arrangement direction of the first side and the second side to form a first elastic piece and a second elastic piece, and two corners of the end part of the first elastic piece are provided with bulges;

the base, the base cooperatees with the lid, is provided with first terminal and second terminal on the base, and the one end of first terminal orientation lid corresponds the arch and is formed with the recess, and the tip that corresponds the second shell fragment is formed with the heavy groove, and the one end cross-under of first terminal orientation lid is between first shell fragment and second shell fragment to make protruding joint in the recess and the tip joint of second shell fragment in the heavy inslot, the second terminal corresponds the contact setting.

In some embodiments of the utility model, the first spring is configured as a curved spring that is curved toward the base or the cover, or the first spring is configured as a straight spring that is inclined toward the base or the cover.

In some embodiments of the utility model, the second spring is configured as a straight spring that is inclined toward the base or the cover, or the second spring is configured as a curved spring that is curved toward the base or the cover.

In some embodiments of the present utility model, the button has a pressing end and a contact end disposed opposite to each other, the cover is provided with a through hole, the button is attached to the cover by the pressing end being through-connected and exposed in the through hole, and the contact end is abutted against the elastic member so that the elastic member is abutted against the button.

In particular embodiments, an annular groove is provided on a side of the button facing the cover, the annular groove being provided in correspondence of a gap between the pressing end and the access hole.

In some embodiments of the utility model, the cover is provided with a bumper corresponding to the contact to attenuate the impact sound of the rebound of the contact.

In some specific embodiments, the cover body is provided with a mounting hole corresponding to the contact, the buffer member is attached to the mounting hole, a buckle is abutted to one side, opposite to the mounting hole, of the buffer member, and the circumferential side of the buckle is detachably clamped in the mounting hole, so that the buffer member is mounted on the cover body.

In some embodiments of the present utility model, an end of the second terminal facing the cover body is provided with an end point corresponding to the contact point, and the end point and the contact point can form electrical connection.

In some embodiments of the present utility model, two opposite sides of the cover body are provided with clamping grooves in a penetrating manner, two opposite sides of the base corresponding to the clamping grooves are provided with clamping blocks, and the base is matched with the cover body through clamping of the clamping blocks in the clamping grooves.

In some embodiments of the present utility model, the base is provided with a bump corresponding to the first side, and when the base is matched with the cover, the bump pushes the first side against the inner side of the cover, so that the first side is fixedly arranged.

In summary, compared with the prior art, the mute micro switch provided by the utility model has the following technical effects:

in the embodiment of the utility model, the first side of the elastic piece is fixedly arranged, the second side of the elastic piece is provided with the contact, the elastic piece is provided with the frame opening, the frame opening is inwards extended along the arrangement direction of the first side and the second side to form the first elastic piece and the second elastic piece, the two corners of the end part of the first elastic piece are provided with the bulges, the end part of the first terminal, which faces the cover body, is correspondingly bulged to form the groove, the end part of the second elastic piece is correspondingly provided with the sinking groove, and finally the end part of the first terminal, which faces the cover body, is connected between the first elastic piece and the second elastic piece in a penetrating way, so that the bulges are clamped in the groove and the end part of the second elastic piece are clamped in the sinking groove, and the first elastic piece and the second elastic piece can be respectively and stably clamped in the groove, so that the stable connection between the elastic piece and the first terminal is ensured.

Drawings

FIG. 1 is a disassembled view of a first embodiment of a micro switch according to the present utility model;

FIG. 2 is a perspective view of a base of a first embodiment of a microswitch according to the present utility model;

FIG. 3 is a disassembled view of a second embodiment of a micro switch according to the present utility model;

FIG. 4 is a perspective view of a base of a second embodiment of a microswitch according to the present utility model;

fig. 5 is a cross-sectional view of a second embodiment of a microswitch according to the present utility model.

Wherein the reference numerals have the following meanings:

the cover body 1, the through hole 10, the mounting hole 11, the concave groove 110, the buckling groove 111, the buffer member 12, the convex connection 121, the buckle 13, the buckling tooth 131, the clamping groove 14, the button 2, the annular groove 20, the pressing end 21, the contact end 22, the elastic member 3, the frame opening 30, the first side 301, the second side 302, the first elastic piece 31, the bulge 311, the second elastic piece 32, the contact 33, the base 4, the first terminal 41, the first plug end 410, the groove 411, the sinking groove 412, the second terminal 42, the second plug end 420, the end 421, the bump 43 and the clamping block 44.

Detailed Description

For a better understanding and implementation, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present utility model. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

First embodiment

According to fig. 1 to 2, the utility model provides a mute micro-switch, which comprises a cover body 1, a button 2, an elastic piece 3 and a base 4.

Wherein the cover body 1 is provided with an inner cavity; specifically, the cover 1 is provided with a through hole 10, and preferably, the through hole 10 is arranged in the center of one side of the cover 1 facing away from the elastic member 3; further, the opposite sides of the cover 1 are provided with a clamping groove 14.

Wherein, the button 2 is attached to and exposed out of the cover 1 and can move up and down relative to the cover 1, and in practice, part of the button 2 is exposed out of the cover 1; specifically, the button 2 has a pressing end 21 and a contact end 22 that are disposed opposite to each other, and the button 2 is attached to the cover 1 by the pressing end 21 being threaded and exposed in the threaded hole 10, i.e., the exposed portion of the button 2 is the pressing end 21; further, the button 2 is provided with the ring channel 20 towards one side of the lid 1, and the ring channel 20 corresponds to the gap setting between the pressing end 21 and the cross-under hole 10 for accept the dust that drops from the gap between pressing end 21 and the cross-under hole 10, thereby avoid the dust to drop in the inner chamber of the lid 1, prevent to influence the normal work of the inside part of micro-gap switch.

Wherein, the elastic element 3 is mounted in the inner cavity of the cover body 1 and is abutted against the button 2, and in practice, the elastic element 3 is abutted against the contact end 22 so that the elastic element 3 is abutted against the button 2; specifically, the elastic member 3 has a first side 301 and a second side 302 opposite to each other, the first side 301 is fixedly disposed in the inner cavity of the cover 1, the second side 302 is provided with a contact 33, and when an external force acts on the button 2 to move the button 2 toward the elastic member 3, the elastic member 3 is elastically deformed under the action of the button 2, and the second side 302 which is not fixedly disposed is elastically deformed to displace the contact 33, and similarly, when the external force acting on the button 2 disappears, the elastic member 3 is restored to rebound the second side 302 to return the contact 33 to the initial position; further, the elastic member 3 has a frame opening 30, the frame opening 30 extends inward along the arrangement direction of the first side 301 and the second side 302 to form a first elastic piece 31 and a second elastic piece 32, two corners of the end of the first elastic piece 31 are formed with protrusions 311, preferably, the first elastic piece 31 and the second elastic piece 32 may be equidistantly arranged, that is, the projection length of the first elastic piece 31 on the horizontal plane is equal to the projection length of the second elastic piece 32 on the horizontal plane, and in practice, a margin distance is left between the first elastic piece 31 and the second elastic piece 32; in practice, the elastic element 3 is a conductor, thus functioning as a conductor.

Wherein, the base 4 is matched with the cover body 1, so that the inner cavity of the cover body 1 forms a relatively closed space, and actually, clamping blocks 44 are arranged at two opposite sides of the base 4 corresponding to the clamping grooves 14, and the base 4 is clamped in the clamping grooves 14 through the clamping blocks 44 to be matched with the cover body 1; specifically, the base 4 is provided with the first terminal 41 and the second terminal 42, the end, facing the cover 1, of the first terminal 41 is formed with the groove 411 corresponding to the protrusion 311, and the end, corresponding to the second spring piece 32, is formed with the countersink 412, in practice, the groove 411 and the countersink 412 are respectively disposed on two opposite sides of the end, facing the cover 1, of the first terminal 41, and the first spring piece 31 and the second spring piece 32 are clamped at the end, facing the cover 1, of the first terminal 41, so that opposite elastic stress is generated to form self-locking, and the first spring piece 31 and the second spring piece 32 cannot fall off even when the first spring piece 31 and the second spring piece 32 are acted by the button 2, so that stable connection between the elastic piece 3 and the first terminal 41 is ensured, and the stability of the micro switch is greatly improved; in practical application, since the first elastic piece 31 and the second elastic piece 32 have a margin, one end of the first terminal 411 facing the cover 1 is connected between the first elastic piece 31 and the second elastic piece 32 in a penetrating manner, the protrusion 311 is clamped in the groove 411 and the end of the second elastic piece 32 is clamped in the sink 412, and the second terminal 42 is arranged corresponding to the contact 33; further, the second terminal 42 is provided with an end 421 facing the end of the cover 1 corresponding to the contact 33, when the contact 33 is displaced under the action of the button 2, the contact 33 and the end 421 are contacted with each other, so that the second terminal 42 is electrically connected with the first terminal 41 through the elastic member 3, and when the contact 33 returns to the initial position, the contact 33 is released from contact with the end 421, and accordingly, the electrical connection between the second terminal 42 and the first terminal 41 is also disconnected.

The descriptions above related to the first side 301, the second side 302, the first elastic piece 31, the second elastic piece 32, the first terminal 41 and the second terminal 42 are all indicative descriptions for convenience of distinguishing the descriptions, and are not specific descriptions, i.e. the contact 33 may be disposed on the first side 301, so long as the contact with the terminal 421 can be achieved; the protrusion 311 may be disposed at two corners of the end of the second elastic sheet 32, but is not limited to only two corners of the end of the first elastic sheet 31 or two corners of one of the end of the elastic sheet, and the utility model is described by taking two corners of the end of the first elastic sheet 31 as a preferred embodiment, and the other embodiments capable of achieving the object of the utility model are all included in the utility model; similarly, the recess 411 and the sink 412 may be disposed at the end of the second terminal 42 facing the cover 1, and of course, the terminal 421 may be disposed at the end of the first terminal 41 facing the cover 1, and thus, the recess 411, the sink 412 and the terminal 421 may be adjusted according to the actual disposition, and the present utility model is explained by using the preferred embodiment in which the recess 411 and the sink 412 may be disposed at the end of the first terminal 41 facing the cover 1 and the terminal 421 may be disposed at the end of the second terminal 42 facing the cover 1, and as for other embodiments, the purpose of the present utility model is satisfied.

In a preferred embodiment, the through hole 10 is in an elliptic cylinder shape, and the cross section of the pressing end 21 is correspondingly in an elliptic shape, so that the stress when the button 2 moves up and down and contacts with the edge of the through hole 10 is reduced, the abrasion between the button 2 and the edge of the through hole 10 is reduced, and the service life of the micro switch is prolonged; more specifically, the pressing surface of the pressing end 21 is arranged in an arc shape, so that the pressing surface of the pressing end 21 can form a line contact type stress form, on one hand, the abrasion thickness of the pressing end 21 after long-time use is reduced, and on the other hand, the action interval is reduced, so that the pressing end 21 is more convenient to stress for moving; furthermore, the contact surface of the contact end 22 is arranged in an arc shape, so that the contact surface of the contact end 22 can also form a line contact type abutting mode, thereby improving the pressure of the contact end 22 to the elastic piece 3, enabling the elastic piece 3 to be subjected to enough deformation by using smaller external force through the button 2 to be electrified, and also reducing the abrasion area of the contact end 22 and the elastic piece 3.

In the preferred embodiment, the first elastic piece 31 is configured as a curved elastic piece, the second elastic piece 32 is configured as a straight elastic piece, or the first elastic piece 31 is configured as a straight elastic piece, and the second elastic piece 32 is configured as a curved elastic piece, however, both the first elastic piece 31 and the second elastic piece 32 can be configured as curved elastic pieces, and can be adjusted according to the required use requirement, and the preferred embodiment is further described herein with the first elastic piece 31 configured as a curved elastic piece and the second elastic piece 32 configured as a straight elastic piece; specifically, since the first elastic piece 31 and the second elastic piece 32 are oppositely clamped at one end of the first terminal 41 facing the cover 1 to form self-locking, and the first elastic piece 31 is bent towards the base 4, so as to provide enough elastic force for the elastic piece 3 to recover, and the second elastic piece 32 is inclined towards the base 4, so as to provide enough deformation distance for the elastic piece 3 to elastically deform, the situation that the second elastic piece 32 is difficult to deform along with the deformation of the elastic piece 3 due to the shorter length of the second elastic piece 32 when the second elastic piece 32 is arranged parallel to the edge of the frame opening 30 is avoided, and the normal use of the elastic piece 3 is influenced, and the arrangement modes of the first elastic piece 31 and the second elastic piece 32 can be simultaneously or alternatively set according to the actual situation; or, the first elastic piece 31 is bent towards the cover 1, the second elastic piece 32 is inclined towards the cover 1, and the two arrangement modes can produce the same effect as the two arrangement modes, and can play a role in buffering when the elastic piece 3 is restored, so that the elastic piece 3 is prevented from being impacted on the cover 1.

When the first elastic piece 31 and the second elastic piece 32 are both curved elastic pieces, the first elastic piece 31 is curved towards the base 4, and the second elastic piece 32 is curved towards the base 4, so as to provide enough elastic force for the elastic piece 3 to recover, and the above-mentioned setting modes for the first elastic piece 31 and the second elastic piece 32 can be set simultaneously or alternatively according to the actual situation; or, the first elastic piece 31 is bent towards the cover 1, the second elastic piece 32 is bent towards the cover 1, and the two arrangements can produce the same effect as the two arrangements, and can play a role in buffering when the elastic piece 3 is restored, so as to prevent the elastic piece 3 from impacting the cover 1.

In a preferred embodiment, the base 4 is provided with a bump 43 corresponding to the first side 301, and when the base 4 is matched with the cover 1, the bump 4 pushes the first side 301 against the inner side of the cover 1, so that the first side 301 is fixedly disposed in the inner cavity.

In practical use, the first terminal 41 is inserted or molded into the base 4, such that the end of the first terminal 41 facing the cover 1 is disposed on the side of the base 4 facing the cover 1 to be disposed in the cavity, and such that the first insertion end 410 of the first terminal 41 is exposed on the side of the base 4 facing away from the cover 1 to be connected, and similarly, the second terminal 42 is inserted or molded into the base 4, such that the end of the second terminal 42 facing the cover 1 is disposed on the side of the base 4 facing the cover 1 to be disposed in the cavity, and such that the second insertion end 420 of the second terminal 42 is exposed on the side of the base 4 facing away from the cover 1 to be connected; the first terminal 41 is set as a common terminal, the second terminal 42 is set as a normally open terminal, of course, the first terminal 41 can also be set as a normally open terminal, and the corresponding second terminal 42 is set as a common terminal, specifically, the first terminal 41 is set as a common terminal, and the second terminal 42 is set as a normally open terminal as a preferred embodiment; specifically, the first terminal 41 communicates with the common electrode terminal through a first plug terminal 410, and the second terminal 42 communicates with the normally open electrode terminal through a second plug terminal 420.

The following describes the operation of the above-mentioned micro switch:

when a downward pressure is applied to the pressing end 21, the button 2 moves downward along the through hole 10, so that the pressing force is applied to the elastic member 3 through the contact end 22, so that the elastic member 3 is elastically deformed to bend downward, and the contact 33 is driven to move downward to contact with the terminal 421, so that the second terminal 42 is electrically connected with the first terminal 41 through the elastic member 3; when no downward pressure is applied to the pressing end 21, the elastic member 3 is restored due to the elastic force, so that the contact 33 is driven to rebound, and the contact 33 is disconnected from the terminal 421, so that the electrical connection between the second terminal 42 and the first terminal 41 is disconnected, and the contact end 22 is pressed, so that the button 2 moves upward along the through hole 10, and the button 2 is simultaneously restored.

Second embodiment

As shown in fig. 3 to 5, the present utility model also provides a mute micro-switch, and the description of the rest of the present embodiment is the same as the corresponding parts in the first embodiment, and only the parts with differences will be described below.

The kinetic energy generated during the recovery of the elastic piece 3 can enable the elastic piece 3 to be upwards bent and then to be restored to a static state, so that the recovery can be completed after the contact point 33 is in rebound beyond an initial position under the action of the kinetic energy, when the micro switch needs to be reduced in size as much as possible, the inner cavity space of the cover body 1 is inevitably compressed, the contact point 33 is easy to collide with the inner side surface of the cover body 1 during the rebound, so that noise is generated, the contact point 33 is hard collided with the cover body 1, the mechanical fatigue of the elastic piece 3 and the cover body 1 is quickened, the elastic piece 3 is easy to break after the button 2 is pressed repeatedly, and the cover body 1 is easy to crack, so that the normal use of the micro switch is seriously affected; more specifically, the cover 1 is provided with mounting holes 11 corresponding to contacts, the buffer member 12 is attached to the mounting holes 11, a buckle 13 is abutted against one side, opposite to the mounting holes 11, of the buffer member 12, and the circumferential side of the buckle 13 is detachably clamped in the mounting holes 11, so that the buffer member 12 is mounted on the cover 1, and the buffer member 12 is convenient to replace.

In a preferred embodiment, the buffer member 12 is formed with a protruding portion 121 extending toward the cover 1, the mounting hole 11 is formed with a recessed groove 110 corresponding to the protruding portion 121, and the buffer member 12 is attached to the mounting hole 11 by the protruding portion 121 being mated with the recessed groove 110; further, the opposite sides of the buckle 13 are provided with the buckling teeth 131, the mounting hole 11 is provided with the buckling grooves 111 corresponding to the buckling teeth 131, the buckle 13 is abutted against one side of the buffer piece 12, which is opposite to the mounting hole 11, and is detachably clamped in the buckling grooves 111 through the buckling teeth 131, so that the buffer piece 12 is firmly installed in the cover body 1, the buffer piece 12 is prevented from falling off after being collided for many times by the contacts 33, a better buffering effect is achieved, and when the buffer piece 12 needs to be replaced, the buckle 13 can be detached to replace the buffer piece 12 in the mounting hole 11, and after replacement, the buckle 13 is abutted against one side of the buffer piece 12, which is opposite to the mounting hole 11, and then the buckling teeth 131 are clamped in the buckling grooves 111, so that the replacement of the buffer piece 12 is completed.

Third embodiment

Based on the same conception, the utility model also provides electronic equipment, and the mute micro switch of the embodiment is applied.

It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

While alternative embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the scope of the embodiments of the utility model.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude that an additional identical element is present in an article or terminal device comprising the element.

While the foregoing has been described in some detail by way of illustration of the principles and embodiments of the utility model, and while in accordance with the principles and implementations of the utility model, those skilled in the art will readily recognize that the utility model is not limited thereto.

Claims (10)

1. A mute micro-switch, comprising:

the device comprises a cover body (1), wherein the cover body (1) is provided with an inner cavity;

a button (2), wherein the button (2) is attached to and exposed out of the cover body (1) and can move up and down relative to the cover body (1);

an elastic piece (3), wherein the elastic piece (3) is attached in the inner cavity and is abutted against the button (2), the elastic piece (3) is provided with a first side (301) and a second side (302) which are opposite, the first side (301) is fixedly arranged, the second side (302) is provided with a contact (33), the elastic piece (3) is provided with a frame opening (30), the frame opening (30) is internally extended along the arrangement direction of the first side (301) and the second side (302) to form a first elastic piece (31) and a second elastic piece (32), and two corners of the end part of the first elastic piece (31) are provided with bulges (311);

base (4), base (4) with lid (1) cooperatees, be provided with first terminal (41) and second terminal (42) on base (4), first terminal (41) orientation lid (1) one end corresponds protruding (311) are formed with recess (411), correspond the tip of second shell fragment (32) is formed with heavy groove (412), first terminal (41) orientation lid (1) one end cross-under in between first shell fragment (31) and second shell fragment (32), and make protruding (311) joint in recess (411) with the tip joint of second shell fragment (32) in heavy groove (412), second terminal (42) correspond contact (33) setting.

2. Mute microswitch according to claim 1, characterized in that the first spring (31) is arranged as a bent spring bent towards the base (4) or the cover (1), or in that the first spring (31) is arranged as a straight spring inclined towards the base (4) or the cover (1).

3. Mute microswitch according to claim 1, characterized in that the second spring (32) is arranged as a straight spring sloping towards the base (4) or the cover (1), or in that the second spring (32) is arranged as a curved spring curving towards the base (4) or the cover (1).

4. A mute micro switch as claimed in any one of claims 1 to 3, wherein the button (2) has a pressing end (21) and a contact end (22) which are disposed opposite to each other, the cover (1) is provided with a through hole (10), the button (2) is attached to the cover (1) by the pressing end (21) being connected through the through hole (10) and being exposed, and the contact end (22) is connected to the elastic member (3) in a abutting manner, so that the elastic member (3) is connected to the button (2) in a abutting manner.

5. The mute micro switch according to claim 4, wherein an annular groove (20) is arranged on one side of the button (2) facing the cover body (1), and the annular groove (20) is arranged corresponding to a gap between the pressing end (21) and the through hole (10).

6. A mute microswitch according to any one of claims 1 to 3, characterised in that the cover (1) is fitted with a buffer (12) in correspondence of the contact (33) to counteract the kinetic energy of rebound of the contact (33).

7. The mute micro switch according to claim 6, wherein the cover body (1) is provided with a mounting hole (11) corresponding to the contact (33), the buffer member (12) is attached to the mounting hole (11), a buckle (13) is abutted against one side of the buffer member (12) facing away from the mounting hole (11), and the circumferential side of the buckle (13) is detachably clamped in the mounting hole (11), so that the buffer member (12) is mounted on the cover body (1).

8. A mute micro switch as claimed in any one of claims 1 to 3, wherein an end of the second terminal (42) facing the cover (1) is provided with an end point (421) corresponding to the contact (33), and the end point (421) is electrically connected to the contact (33).

9. A mute micro switch according to any one of claims 1 to 3, wherein the opposite sides of the cover body (1) are provided with clamping grooves (14) in a penetrating manner, the opposite sides of the base (4) corresponding to the clamping grooves (14) are provided with clamping blocks (44), and the base (4) is matched with the cover body (1) through the clamping blocks (44) clamped in the clamping grooves (14).

10. A mute micro switch according to any one of claims 1 to 3, wherein the base (4) is provided with a bump (43) corresponding to the first side (301), and when the base (4) is matched with the cover body (1), the bump (43) pushes the first side (301) to the inner side surface of the cover body (1) so as to fix the first side (301).